Broccoli Casserole

2 lbs frozen broccoli
2 cups instant rice (uncooked)
1 cup onions (chopped)
2 cups Velveeta cheese (cubed)
1 cup water
2 (10 1/2 ounce) cans cream of mushroom soup
11 tablespoons butter

Thaw broccoli and add remaining ingredients in crock pot.
Cook on high for 1 hour then turn to low and cook until ready to serve. Stir occasionally.